KR100347312B1 - Method and apparatus for display the remnant time of the traffic signal lamp - Google Patents

Abstract

The method and apparatus for displaying remaining time of a traffic light for flickering the blue and red specific lights constituting the traffic light in a period of continuously varying according to the remaining time so that the driver knows the conversion of the traffic light in advance can be carried out safely. The present invention includes the steps of checking whether the signal light is turned on and calculating the remaining time until the lit signal light is turned off; Setting a blinking period by multiplying the set period and the remaining time when the remaining time is calculated; Flashing until the traffic light turns off according to the set flashing cycle.

Description

Method and apparatus for displaying remaining time of traffic light {Method and apparatus for display the remnant time of the traffic signal lamp}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic light, and in particular, by flashing the blue and red specific lights constituting the traffic light in a period of continuously varying according to the remaining time so that the driver can know the conversion of the traffic light in advance so as to promote safe driving. The present invention relates to a method and an apparatus for displaying a remaining time of a traffic light.

In general, stops and walks for traffic signals and pedestrians are difficult for drivers and pedestrians to know immediately when the traffic light is converted. That is, since it is difficult for drivers and pedestrians to know the remaining time before the traffic light is converted, a device for displaying the time when the traffic light is turned on or off by a number or blinking in the form of a graphic bar has been developed.

In Korean Patent Laid-Open Publication No. 95-1577, a method of displaying the remaining time by numbers is described, and in Korean Utility Laid-Open Publication No. 99-013006, displaying the remaining time in the form of a graphic bar is described.

However, the conventional method of displaying the remaining time in the form of numbers and graphic bars to solve the fact that the current signal switching time cannot be known in advance in the traffic light requires additional facilities in addition to the traffic light. There is a problem, and there is a problem that interferes with the traffic flow because the facility is difficult to secure visibility.

The present invention has been invented to solve the above problems, and the first object of the present invention is that the driver signals without a separate facility by flashing in a period proportional to the time of lighting until the blue and red light turned on from the light to turn off The purpose of the present invention is to provide a method of indicating the remaining time of a traffic light in order to be able to know the change.

It is also a second object of the present invention to provide an apparatus suitable for performing the remaining time display method of the traffic lights.

1 is a block diagram showing the configuration of a remaining time display apparatus of a traffic light according to the present invention.

FIG. 2 is a diagram illustrating an embodiment of a blink cycle proportional to the remaining time in FIG. 1.

3 is a flowchart illustrating an operation of a method for displaying a remaining time of a traffic light according to the present invention.

<Explanation of symbols for the main parts of the drawings>

110: power supply unit 112: first rectifying unit

114: second rectifying unit 120: control unit

122: period setting unit 124: signal driver

130: traffic light

The present invention for achieving the above object

Checking whether the traffic light is turned on and calculating a remaining time until the lit traffic light is turned off;

Setting a blinking period by multiplying the set period and the remaining time when the remaining time is calculated;

Flashing the lights until the traffic lights are turned off according to the set flashing cycle.

A second object of the present invention is to provide a signal lamp system for operating a traffic light by rectifying power supplied from a power supply unit through a rectifying unit.

A control unit which receives the power supplied from the power supply unit through the first rectifying unit, calculates a remaining time until the light is turned off in the traffic light, and calculates the remaining time and a predetermined period to change the blinking period of the lit traffic light; And,

And a period setting unit for transmitting and receiving a signal to and from the control unit, storing a period set by a user for determining a flashing period of a signal lamp, and inputting the period to the controller.

According to the present invention, the driver can know the change in the signal even without a separate facility, thereby promoting stable operation.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a configuration of an apparatus for displaying a remaining time of a traffic light according to the present invention, and FIG. 2 is a diagram illustrating an embodiment of a blinking cycle proportional to the remaining time in FIG. 3 is a flowchart illustrating the operation of the remaining time display method of a traffic light according to the present invention.

As shown in FIG. 1, the remaining time display device such as a traffic signal receives a commercial AC voltage supplied from the power supply unit 110, reduces the voltage to a predetermined AC voltage through a transformer (not shown), and then first rectifier 112. Through the conversion into the input DC voltage flows into the control unit 114. In addition, the power supplied from the power supply unit 110 is reduced to an AC voltage capable of operating the traffic light 130 through the second rectifier 114 and then applied to the traffic light 130.

The control unit 114 receives power through the first rectifying unit 112 and includes a ring counter circuit or a timer circuit and transmits a signal to the period setting unit 122 that stores a period set by a user. It is configured to transmit and receive, and a signal driver 124 for driving the traffic light 130 is connected to the output terminal. The signal driver 124 connected to the output side of the controller 114 performs on and off operation of the signal lamp 130.

Therefore, the control unit 114 calculates the remaining time until the red light is turned on from the traffic light 130 to blue, and changes the flashing cycle of the lit traffic light 130 to be proportional to the remaining time.

For example, as shown in FIG. 2, if the period of the period setting unit 122 is set to one tenth of an hour and the remaining time is 30 seconds until the lit red turns blue, the controller 114 lights up. If the remaining red flashes every 3 seconds, if the remaining time is 10 seconds remaining, the lit red flashes every 1 second, if there are 5 seconds remaining, the second flashes at 0.5 second intervals, and if there are 2 seconds remaining, flashes at 0.2 second intervals. The control signal is output to the signal driver 124 so that the driver can fully recognize the time point at which the signal is converted.

3 is a flowchart showing the control operation of the present invention, first, the control unit 114 checks whether the traffic light is turned on (step S1) and calculates the remaining time until the lit traffic light is turned off (step S2). Since the light is turned on by the pre-programmed time data, the remaining time can be counted until the light is turned off by subtracting the elapsed time from the pre-programmed time data.

When the remaining time is counted, the control unit 114 sets the flashing period by multiplying the period set in the period setting unit 122 with the remaining time (step S3). For example, the period of the period setting unit 122 is set to 1 / 10th of a second. In the set state, if there is 20 seconds remaining before the lit traffic light is converted, the controller 114 sets the flashing red flashing cycle every 2 seconds.

When the flashing cycle is set, the controller 114 outputs a control signal to the signal driver 124 to flash the lit signal lamp according to the flashing cycle. Thereafter, the controller 114 changes the blinking period as the remaining time continuously decreases. That is, the control unit 114 operates the traffic lights to flash the lit traffic light at 1 second intervals if 10 seconds remain in the remaining time until the traffic lights are turned off, and if the remaining 5 seconds remain, the traffic lights operate to flash at 0.5 second intervals. Make sure the driver is fully aware.

Therefore, in the present invention, it is difficult for the driver to recognize the time when the traffic light is converted in the conventional traffic light, so that it is not possible to reduce the accidents around the traffic light. It's an economic way to know ahead of time.

As described above, the remaining time display method of the traffic light according to the present invention is currently lighted in the simplest way by reducing the change of the current traffic signal system and modifying the signal control circuit while accepting the existing equipment as it is. The remaining switching time of the traffic light can be effectively communicated to the driver.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited thereto and may be improved or modified by those skilled in the art within the scope of the technical idea of the present invention.

Claims (3)

In traffic lights, When at least one of the plurality of lights constituting the traffic light is turned on, the remaining time until the light is turned off to extract the remaining time, traffic lights for flashing the light in a continuous variable cycle in accordance with the extracted remaining time How to display remaining time I) checking whether the light is turned on and calculating the remaining time until the lit light is turned off; Ii) setting a blinking period by multiplying the set period and the remaining time when the remaining time is calculated in the step; Iii) flashing until the traffic light turns off according to the flashing cycle set in the step. In the traffic light system for operating the traffic light 130 by rectifying the power supplied from the power supply unit 110 through the rectifier 114, Receives the power supplied from the power supply unit 110 through the first rectifier 112 and calculates the remaining time until the light is turned off in the signal light 130, and calculates the remaining time and the predetermined period to light up A control unit 114 for operating by changing the blinking cycle of the traffic light 130; And, A period setting unit 122 for transmitting and receiving a signal with the control unit 114, storing a period set by a user for determining a blinking period of the traffic light 130, and inputting the period to the control unit 114. Remaining time display device of a traffic light, characterized in that it comprises.